How to Connect Load Cell

About: I study Teaching physics and geography, I enjoy with laws of nature :D Be happy and fun with science.
More About Michal Choma »

To measure weight you can use load cell, which work on measure resistance of 4 strain gauges. Strain gauge is resistor, which change its resistance on bending. Values of resistance, which is change is +- 1 ohm, so it need very sensitive measurement. Also it need temperature compesate element, which in our case, is one of strain gauge. Wheastone bridge is circuit, which is used to measure weight using strain gauges.